营养繁殖可以通过天然(天然营养繁殖)以及人工(人工营养繁殖)手段来实现。由于营养繁殖产生的植物是从单亲植物无性生产的,因此它们是亲本植物的遗传克隆。这可能有利有弊。营养繁殖的一个优点是具有对特定环境有利的性状的植物被重复繁殖。采用人工营养繁殖技术的商业作物种植者可确保维持有利的性状和产品质量。营养繁殖的主要缺点是该过程不允许遗传变异。这些植物在遗传上是相同的,并且都容易受到可以破坏整个作物的相同植物病毒和疾病的影响。自然营养繁殖涉及从单个成熟植物的部分开发新植物。新植物在没有人为干预的情况下自然生长和发育。在植物中实现营养繁殖的关键能力是发育不定根的能力。这些是由根以外的植物结构产生的根,例如茎或叶。通过不定根的形成,新植物可以从亲本植物的茎,根或叶的延伸发育而来。修饰的茎通常是许多植物中营养繁殖的来源。植物茎的植物性植物结构包括根茎,匍匐茎,球茎,块茎,球茎和芽。从根部发出的植物结构包括芽和块茎。小植物是从植物叶子中出现的植物结构。营养繁殖可以通过根茎的发育自然发生。根状茎是经过修饰的茎,通常沿着地表或地下水平生长。根茎是蛋白质和淀粉等物质的储存地点。随着根茎的延伸,根和芽可能沿着根茎的一定间隔出现并发育成新的植物。某些草,百合,虹膜和兰花以这种方式繁殖。食用植物根茎包括姜和姜黄。

澳大利亚查尔斯达尔文大学 Essay代写:营养繁殖的类型

Vegetative propagation may be accomplished by natural (natural vegetative propagation) as well as artificial (artificial vegetative propagation) means. Since plants resulting from vegetative propagation are produced asexually from a single parent plant, they are genetic clones of the parent plant. This can have advantages and disadvantages. One advantage of vegetative propagation is that plants with traits that are favorable for a particular environment are repeatedly reproduced. Commercial crop growers employing artificial vegetative propagation techniques can ensure that favorable traits and product quality are maintained. A major disadvantage of vegetative propagation is that this process does not allow for genetic variation. The plants are genetically identical and are all susceptible to the same plant viruses and diseases that can destroy entire crops. Natural vegetative propagation involves the development of a new plant from parts of a single mature plant. The new plants grow and develop naturally without human intervention. An important ability that is key to enabling vegetative propagation in plants is the ability to develop adventitious roots. These are roots that arise from plant structures other than the root, such as stems or leaves. Through the formation of adventitious roots, new plants may develop from extensions of the stems, roots, or leaves of a parent plant. Modified stems are most often the source of vegetative propagation in many plants. Vegetative plant structures that arise from plant stems include rhizomes, runners, bulbs, tubers, corms, and buds. Vegetative structures emanating from roots include buds and tubers. Plantlets are vegetative structures that emerge from plant leaves. Vegetative propagation may occur naturally through the development of rhizomes. Rhizomes are modified stems that typically grow horizontally along the ground surface or underground. Rhizomes are storage sites for substances such as proteins and starches. As rhizomes extend, roots and shoots may arise along certain intervals of the rhizome and develop into new plants. Certain grasses, lilies, irises, and orchids propagate in this manner. Edible plant rhizomes include ginger and tumeric.

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